TERMIUM Plus®

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INDICATOR SPOT [3 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2010-01-29

English

Subject field(s)
  • Radar, Radio Guidance and Goniometry
CONT

A sweep ramp provides the tuning voltage for a voltage-tuned oscillator and is simultaneously applied to the horizontal-deflection system of a cathode-ray-tube display. The local-oscillator frequency is mixed with the input signal to produce an intermediate frequency (IF). The IF is detected, filtered, and applied to the vertical deflection plates of the CRT [cathode-ray-tube].

CONT

The receiver has to have suitable pass band characteristics to deal with the pulse modulation side bands, and must be free from paralysis following reception of a large signal... Its output is rectified and amplified and applied to the cathode-ray tube display, either as a deflexion or an intensity modulation. The cathode-ray tube is also supplied with a range time base..., synchronized to the pulse transmission, and suitable calibration devices... are usually also necessary. The form of the display unit depends on the particular radar application, and on what coordinate or coordinates other than range are to be presented. For example, in the plan position indicator the time base starts from the centre of the tube and goes radically outwards in a direction depending on the azimuth of the beamed aerials(which sweeps continuously), and the signal is presented as a spot intensifier.

French

Domaine(s)
  • Radar, radioguidage et radiogoniométrie

Spanish

Save record 1

Record 2 1975-03-11

English

Subject field(s)
  • Photography
OBS

some makes [of flash bulbs] therefore carry an -- inside the bulb. This spot changes colour if any leakage has taken place. [also blue spot, BRUPH 65 132]

French

Domaine(s)
  • Photographie
OBS

une lampe en bon état doit posséder une --. Lorsque cette tache est rose, la lampe est hors d'usage.

Spanish

Save record 2

Record 3 1975-03-11

English

Subject field(s)
  • Photography
  • Lamp Components
OBS

some makes [of flash bulbs] therefore carry an -- inside the bulb. This spot changes colour if any leakage has taken place [also blue spot, BRUPH 65 132]

French

Domaine(s)
  • Photographie
  • Éléments de lampes
OBS

un -- visible au travers de l'ampoule vire au rose par l'humidité de l'air, si par suite d'une fuite l'oxygène a été remplacé par de l'air

Spanish

Save record 3

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